dgeqpf Interface

interface


Called by

interface~~dgeqpf~~CalledByGraph interface~dgeqpf dgeqpf proc~tangnf tangnf proc~tangnf->interface~dgeqpf proc~rootnf rootnf proc~rootnf->proc~tangnf proc~stepnf stepnf proc~stepnf->proc~tangnf proc~fixpnf fixpnf proc~fixpnf->proc~rootnf proc~fixpnf->proc~stepnf proc~nf_solver_solve nf_solver%nf_solver_solve proc~nf_solver_solve->proc~fixpnf

public subroutine dgeqpf(m, n, a, lda, jpvt, tau, work, info)

Arguments

Type IntentOptional Attributes Name
integer, intent(in) :: m
integer, intent(in) :: n
real(kind=dp), intent(inout) :: a(lda,*)
integer, intent(in) :: lda
integer, intent(inout) :: jpvt(*)
real(kind=dp), intent(out) :: tau(*)
real(kind=dp), intent(out) :: work(*)
integer, intent(out) :: info

Description

QR factorization with column pivoting: A*P = Q*R.